lotoproject

purpose of the project:

A subsidiary of "Mifal Hapayis" is interested in symbolizing the lottery.

At the entrance to the simulator, a menu will be displayed with 3 options:

1. Entering the number of participants in the lottery
2. Viewing the latest lottery results
3. Exit_

Option 1

If the first option is selected then after absorbing the number of participants, for each of the participants a name will be entered The participant and after him will be presented with a sub-menu, with 2 options

1. Manual lottery
2. Automatic lottery

In each of the sub-options (2,1) the simulator will ask the participant for a desired number of columns to fill in. Each column is made up of 6 numbers, between 1 and 15 (inclusive) only, when a number cannot be repeated twice. Each participant's columns will be saved in a column of column voters.

If the participant selects a manual lottery, the user must receive N columns into the list. If the participant selects an automatic lottery, N towers must be grilled automatically and included in the list. You must define a structure for a participant in which his name and list of columns will appear.

All participants will be saved in the list of participants. After completing the preparation of the list of participants, the simulator will draw a winning column (that is, 6 numbers will be drawn). The simulator will then go through all the columns and look for a match between each column and the winning column. Each column will have a number saved Vulnerability, ie, the number of numbers that appeared in both the column examined and the winning column.

_At the end of the lottery and the test, the following data must be printed on the screen⏬

• The winning column
• For each participant the columns received / drawn for him when the columns are displayed in descending order of the number of vulnerabilities, When next to each column the number of vulnerabilities will be indicated.
• General summary of the number of columns with 6 vulnerabilities, the number of columns with 5 vulnerabilities) does not include those with 6 Vulnerability ( the number of columns with 4 vulnerabilities) does not include those with 5,6 vulnerabilities (etc.). The participant with the highest average number of hits (total hits divided by the number of columns).

After printing the details and getting approval from the user (continue), the latest lottery data must be saved in the file _Binary_⏬

• An integer (int) will appear at the beginning of the file, indicating the number of participants, followed by the participants.
• For each participant will appear:
• Integer (int) Indicates the number of letters in the participant's name
• It will be followed by the letters of the name.
• An integer (int) will then appear indicating the number of columns of the participant.
• After that the participant's columns will appear in a compressed form: each column will be saved in only 3 bytes.
• After all participants, the winning column will also appear in a compressed form.
• After saving the lottery data, return to the main menu.

Option 2

If the second option is selected, then the results of the last lottery must be presented to the user in a manner similar to the way it is The lottery result was displayed under option 1. Remarks:

• If option 2 is selected before the lottery rule has taken place, a suitable message must be presented to the user.
• If the symbol ator has been activated and in the current operation the lottery has not yet taken place, the results of the lottery must be displayed The last one that took place in the previous operation of the simulator (whose details are stored in the binary file).
• If the symbol ator has been activated and in the current operation a lottery has already taken place, the results of the lottery must be presented.

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Tools I used during the project:

• File Text and binaries (writing and reading from a file) ☑️
• Linked lists ☑️
• Recursion ☑️
• Memory management according to the requirements in C ☑️
• Working with arrays ☑️
• Sorting algorithms (MERGE SORT) ☑️
• Random function ☑️
• Work with bytes ☑️
• Generic functions ☑️